The Baseline JS Compiler Has Landed in Firefox—
Firefox’s JavaScript engine currently compiles in three stages. All code is initially interpreted but if it becomes “hot” (is executed several times), it gets compiled via the JaegerMonkey compiler. If the code gets even hotter, it is compiled via IonMonkey. That takes longer, but also produces much faster code. The Baseline Compiler is a replacement for JaegerMonkey that fits better between the interpreter and IonMonkey, is simpler and brings performance and memory footprint improvements.

Despite the proliferation of mobile internet with slower speeds, Steve Souders just reported that the top 1000 websites have gotten 24% heavier year over year! Page weight, resources loading and speed of your code is all incredibly important for building good web experiences.

Watch a free lesson from Kyle on why you should be using a script loader and why document.write is considered harmful.

Custom jQuery Builds with Grunt—
This blog post explains that you can customize jQuery via Grunt: Some of its functionality is grouped into modules that can be removed from the code base. Examples of modules: ajax, css and effects.

12 JavaScript Quirks—
A series of blog posts explaining common JavaScript quirks and how to best handle them. Concludes by showing that ECMAScript 6 fixes most of those quirks.

Demystifying Cordova and PhoneGap—
Cordova is an application container that lets you deploy HTML5 apps natively on mobile devices. It is the engine behind PhoneGap. This blog post goes into more details about what both projects are and how they differ.

Hoodie: Node Framework for Rapidly Building Apps—
Hoodie is a framework for frontend-only web apps. It stores data locally first and syncs it in the background when possible, with a backend based on Node.js and CouchDB. At the moment, the project is still a developer preview and requires OS X and homebrew.

Front End Developer at Booking.com— Booking.com is the world’s leading accommodation website. We serve millions of customers all over the world from our headquarters in the center of Amsterdam where we’re looking for User Experience experts to join our front-end team.